When Newmark hands the briefcase of bearer bonds across the desk, its latches are open as it leaves him, but are audibly clicked open by the receiver after receiving it.
When McMillan arrives at the lumber yard the body is still on site but Enright tells him ballistics has already matched the slug from the victim to a previous homicide case. With the body still at the drop site, there is no way that the slug could have been recovered from the body and analyzed already. Even in the early seventies, forensic teams would leave retrieval of the bullet up to the coroner or medical examiner, to be done at the autopsy in a secure location.
Mac stays up late and confronts Randy about his past. Randy admits the deception and tells Mac his name is Murphy and he is from Brooklyn. Megan says she knows all about Randy, and everyone makes nice nice. The women go to bed and Mac shows Randy out. As they move toward the door, the boom enters the picture at the top, at 12 o'clock.
When Burton Ridgely is talking to Allan Kovacs it is the evening time in San Francisco but it looks like daytime outside of Ridgely's window in Montreal.